:root{
  --paper:#F2F5F3;
  --surface:#FFFFFF;
  --surface-2:#E7EDE9;
  --ink:#111A16;
  --ink-2:#3E4A45;
  --ink-3:#697672;
  --line:#D2DAD6;
  --line-strong:#B6C2BC;
  --accent:#0B6B3F;
  --accent-soft:#E2F0E8;
  --on-accent:#FFFFFF;
  --d-elec:#A96A0E;
  --d-hvac:#1B6BA6;
  --d-ph:#0C7A72;
  --d-fire:#AF3524;
  --d-comm:#0B6B3F;
  --d-maint:#556159;
  --shadow:0 1px 2px rgba(17,26,22,.05), 0 8px 24px -16px rgba(17,26,22,.35);
  --maxw:1140px;
  --step-0:1rem;
  --step-1:1.1875rem;
  --step-2:1.4375rem;
  --step-3:1.8125rem;
  --step-4:2.375rem;
  --step-5:3.125rem;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0C1210;
    --surface:#121A17;
    --surface-2:#18221E;
    --ink:#E7EDE9;
    --ink-2:#A9B5B0;
    --ink-3:#7B8883;
    --line:#243029;
    --line-strong:#33443B;
    --accent:#39C482;
    --accent-soft:#12291F;
    --on-accent:#04150C;
    --d-elec:#E3A44A;
    --d-hvac:#63AEE0;
    --d-ph:#3EC4B9;
    --d-fire:#E97862;
    --d-comm:#39C482;
    --d-maint:#93A099;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -16px rgba(0,0,0,.8);
  }
}
:root[data-theme="dark"]{
  --paper:#0C1210;
  --surface:#121A17;
  --surface-2:#18221E;
  --ink:#E7EDE9;
  --ink-2:#A9B5B0;
  --ink-3:#7B8883;
  --line:#243029;
  --line-strong:#33443B;
  --accent:#39C482;
  --accent-soft:#12291F;
  --on-accent:#04150C;
  --d-elec:#E3A44A;
  --d-hvac:#63AEE0;
  --d-ph:#3EC4B9;
  --d-fire:#E97862;
  --d-comm:#39C482;
  --d-maint:#93A099;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -16px rgba(0,0,0,.8);
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Source Serif 4","Iowan Old Style",Georgia,serif;
  font-size:var(--step-0);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.grotesk{
  font-family:Archivo,"Helvetica Neue",Arial,sans-serif;
  font-weight:600;
  letter-spacing:-0.015em;
  text-wrap:balance;
  margin:0;
}
p{margin:0}
a{color:inherit}
img{max-width:100%}

.mono{
  font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.72rem;
  letter-spacing:.09em;
  text-transform:uppercase;
  font-weight:500;
}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto}
.gutter{padding-inline:24px}
@media (max-width:640px){.gutter{padding-inline:18px}}

section{padding-block:clamp(56px,7vw,96px)}
.sec-head{display:flex;flex-direction:column;gap:12px;margin-bottom:36px;max-width:62ch}
.sec-head h2{font-size:var(--step-4);line-height:1.1}
.sec-head p{color:var(--ink-2);font-size:var(--step-1)}
.eyebrow{color:var(--accent);display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:block}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-in{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand-name{font-family:Archivo,sans-serif;font-weight:700;letter-spacing:.02em;font-size:1.0625rem;line-height:1}
.brand-sub{font-family:"IBM Plex Mono",monospace;font-size:.58rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);line-height:1;margin-top:4px}
.nav{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav a{
  font-family:Archivo,sans-serif;font-size:.875rem;font-weight:500;
  text-decoration:none;color:var(--ink-2);padding-block:6px;
  border-bottom:2px solid transparent;
}
.nav a:hover{color:var(--ink);border-bottom-color:var(--accent)}
@media (max-width:900px){.nav{display:none}}

.btn{
  font-family:Archivo,sans-serif;font-weight:600;font-size:.875rem;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border-radius:2px;text-decoration:none;
  border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--accent);color:var(--on-accent)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.header-in .btn{flex:0 0 auto}
@media (max-width:520px){.header-cta{display:none}}

/* ---------- hero ---------- */
.hero{padding-block:clamp(48px,6vw,84px) clamp(48px,6vw,80px);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:start}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr;gap:40px}}
.hero h1{font-size:var(--step-5);line-height:1.04;margin-block:18px 20px;letter-spacing:-0.03em}
.hero-lead{font-size:var(--step-1);color:var(--ink-2);max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:0;margin-top:36px;border-top:1px solid var(--line)}
.fact{padding:16px 22px 4px 0;margin-right:22px;border-right:1px solid var(--line)}
.fact:last-child{border-right:none}
.fact-k{display:block;font-family:Archivo,sans-serif;font-weight:700;font-size:var(--step-2);line-height:1.1;font-variant-numeric:tabular-nums}
.fact-v{display:block;color:var(--ink-3);margin-top:4px}

/* drawing legend panel */
.legend{
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.legend-head{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:12px 16px;border-bottom:1px solid var(--line);background:var(--surface-2);
}
.legend-head .mono{color:var(--ink-3)}
.legend-rows{display:flex;flex-direction:column}
.legend-row{display:grid;grid-template-columns:14px 1fr auto;gap:12px;align-items:center;padding:13px 16px;border-bottom:1px solid var(--line)}
.legend-row:last-child{border-bottom:none}
.swatch{width:14px;height:14px;border-radius:1px}
.legend-name{font-family:Archivo,sans-serif;font-weight:600;font-size:.9375rem;line-height:1.25}
.legend-code{font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--ink-3);letter-spacing:.06em}
.legend-foot{padding:13px 16px;background:var(--surface-2);border-top:1px solid var(--line);color:var(--ink-2);font-size:.9rem}

/* ---------- services ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
@media (max-width:980px){.svc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.svc-grid{grid-template-columns:1fr}}
.svc{background:var(--surface);padding:26px 24px 28px;display:flex;flex-direction:column;gap:12px}
.svc-top{display:flex;align-items:center;gap:10px}
.svc-bar{width:26px;height:3px;background:var(--c)}
.svc-no{font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--ink-3);letter-spacing:.1em}
.svc h3{font-size:var(--step-2);line-height:1.15}
.svc p{color:var(--ink-2);font-size:.9375rem}
.svc ul{margin:2px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:7px}
.svc li{position:relative;padding-left:16px;font-size:.9375rem;color:var(--ink-2)}
.svc li::before{content:"";position:absolute;left:0;top:.6em;width:6px;height:1px;background:var(--c)}
.svc .std{margin-top:auto;padding-top:16px;border-top:1px dashed var(--line-strong);color:var(--ink-3);font-size:.8rem;font-family:"IBM Plex Mono",monospace;letter-spacing:.04em;line-height:1.5}

/* ---------- sectors ---------- */
.sectors{background:var(--surface);border-block:1px solid var(--line)}
.sec-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
@media (max-width:900px){.sec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:540px){.sec-grid{grid-template-columns:1fr}}
.sector{display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:2px solid var(--accent)}
.sector h3{font-size:var(--step-1)}
.sector p{color:var(--ink-2);font-size:.9375rem}

/* ---------- delivery ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.step{background:var(--surface);padding:24px;display:flex;flex-direction:column;gap:9px}
.step-n{font-family:"IBM Plex Mono",monospace;font-size:.72rem;color:var(--accent);letter-spacing:.12em;font-weight:500}
.step h3{font-size:var(--step-1)}
.step p{color:var(--ink-2);font-size:.9375rem}

/* ---------- compliance ---------- */
.compliance{background:var(--surface);border-block:1px solid var(--line)}
.comp-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:52px;align-items:start}
@media (max-width:900px){.comp-layout{grid-template-columns:1fr;gap:34px}}
.comp-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.comp-item{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--line)}
.comp-name{font-family:Archivo,sans-serif;font-weight:600;font-size:.9375rem}
.comp-desc{display:block;font-family:"Source Serif 4",serif;font-weight:400;color:var(--ink-3);font-size:.875rem;margin-top:3px;letter-spacing:0;text-transform:none}
.chip{
  font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;
  padding:5px 9px;border:1px solid var(--line-strong);color:var(--ink-3);white-space:nowrap;border-radius:2px;
}
.chip-ok{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.note{background:var(--accent-soft);border-left:3px solid var(--accent);padding:18px 20px;color:var(--ink-2);font-size:.9375rem}

/* ---------- contact ---------- */
.contact-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:52px;align-items:start}
@media (max-width:900px){.contact-layout{grid-template-columns:1fr;gap:36px}}
.form{display:flex;flex-direction:column;gap:16px;background:var(--surface);border:1px solid var(--line);padding:26px 24px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.field input,.field select,.field textarea{
  font-family:"Source Serif 4",serif;font-size:.9375rem;color:var(--ink);
  background:var(--paper);border:1px solid var(--line-strong);border-radius:2px;padding:10px 12px;
}
.field textarea{resize:vertical;min-height:96px}
.field input:focus-visible,.field select:focus-visible,.field textarea:focus-visible,.btn:focus-visible,.nav a:focus-visible,a:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:520px){.field-row{grid-template-columns:1fr}}
.out{display:none;border:1px solid var(--accent);background:var(--accent-soft);padding:16px 18px;gap:12px;flex-direction:column}
.out.shown{display:flex}
.out pre{
  margin:0;white-space:pre-wrap;font-family:"IBM Plex Mono",monospace;font-size:.78rem;line-height:1.55;
  color:var(--ink-2);max-height:210px;overflow:auto;
}
.out-actions{display:flex;gap:10px;flex-wrap:wrap}
.contact-details{display:flex;flex-direction:column;gap:22px}
.cd-item{display:flex;flex-direction:column;gap:4px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.cd-item:last-child{border-bottom:none}
.cd-k{color:var(--ink-3)}
.cd-v{font-family:Archivo,sans-serif;font-weight:600;font-size:var(--step-1);word-break:break-word}
.cd-v a{text-decoration:none}
.cd-v a:hover{color:var(--accent)}

.tbc{
  border-bottom:1px dotted var(--ink-3);
  color:var(--ink-3);
  cursor:help;
}

/* ---------- footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding-block:36px}
.foot-in{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center}
.foot-in p{color:var(--ink-3);font-size:.875rem}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{font-family:Archivo,sans-serif;font-size:.875rem;text-decoration:none;color:var(--ink-2)}
.foot-links a:hover{color:var(--accent)}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}
html{scroll-behavior:smooth}